Statements of CSB Chairman John Bresland and CSB Investigations Supervisor Don Holmstrom Updating the Public on the Investigation of the Nov. 4 Explosion at the Silver Eagle Refinery in Woods Cross, Utah​

The CSB investigative team has been continuing its investigation of the hydrogen gas explosion
at the Silver Eagle refinery in Woods Cross on November 4. Our preliminary findings indicate
that the explosion occurred when a 10-inch pipe failed catastrophically. Although the failure
mechanism has yet to be determined, the pipe showed evidence of significant thinning which had
not been detected by the refinery’s mechanical integrity program.